This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

Plastics are not inert: they gradually break into fragments over time, forming micro- and then nanoplastics (i.e., particles ...

Digestive enzymes are often used to support healthy digestion and increase nutrient absorption. Studies show that they may benefit conditions like lactose intolerance and irritable bowel syndrome (IBS ...

The mouth starts the digestion process by breaking food down into a more easily digestible form. It does this through a combination of mechanical and chemical digestion. After people take food in ...